GASTROENTEROLOGY ARTICLE OF THE WEEK
October 4, 2007
Gurbuxani S, Anastasi J. What do to when you suspect gastrointestinal lymphoma: A pathologist’s perspective. Clin Gastroenterol Hepatol 2007;5:417-421
1. Areas of the GI tract most commonly involved in lymphoma include (from most common to least common)
a. rectum, ileum, stomach, pancreas
b. ileum, pancreas, esophagus, stomach
c. stomach, small bowel, ileo-cecum, rectum
d. colon, small bowel, ileum, stomach
True or False
2. Primary gastrointestinal lymphomas almost never present as an ulcerated mass on endoscopy
3. The ileum is the most common site for small bowel lymphoma of the western type
4. Microscopic involvement of the GI mucosa with lymphoma is possible even if the mucosa is endoscopically normal.
5. Lymphoma associated with celiac disease most commonly affects the ileum
6. The GI tract is the most common site for extranodal lymphomas
7. Mantle cell lymphoma is more common in the stomach
8. Molecular genetic studies of MALT samples can help
identify tumors that will not respond to H. pylori eradication